When having a heart attack, you may experience the following symptoms:
pain, pressure, heaviness or tightness in one or more parts of your upper body, including your chest, shoulder(s), neck, arm(s), jaw or back. This may occur in combination with other symptoms. For example, you may also feel nauseous, dizzy or light-headed, short of breath or have a cold sweat.
Warning signs vary from person to person and they may not always be sudden or severe. If you have warning signs of heart attack that are severe, get worse quickly or last more than 10 minutes, call triple zero (000) immediately and ask for an ambulance.